<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
<?php
$ss=2;
$max=1000;
$arr=array();
echo $max."以内的素数为：";
while($ss < $max){
	$boo = false;
	foreach($arr as $value){
		if($ss % $value == 0){
			$boo=true;
			break;
		}
	}
	if(!$boo){
		echo $ss." ";
		$arr[count($arr)]=$ss;
	}
	$ss++;
}
?>
</body>
</html>